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Employees deal with passengers at the counter at Sendai Airport in Sendai, northern Japan after flights in and out of the airport were canceled Tuesday, Oct. 30, 2012. The airport has been closed after an unexploded bomb believed to be from World War II was found during construction near a runway. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA

Employees deal with passengers at the counter at Sendai Airport in Sendai, northern Japan after flights in and out of the airport were canceled Tuesday, Oct. 30, 2012. The airport has been closed after an unexploded bomb believed to be from World War II was found during construction near a runway. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA